AutoCodesGMC – P0BC6 GMC

P0BC6 GMC Code - Hybrid/EV Battery Temperature Sensor 5 Circuit Erratic

Quick Answer

Hybrid/EV Battery Temperature Sensors are used to monitor the battery temperature. Common causes include Faulty Hybrid/EV Battery Assembly, Hybrid/EV Battery Assembly harness is open or shorted, Hybrid/EV Battery Assembly circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0BC6 GMC indicates Hybrid/EV Battery Temperature Sensor 5 Circuit Erratic.
Common causes
Common causes include Faulty Hybrid/EV Battery Assembly, Hybrid/EV Battery Assembly harness is open or shorted, Hybrid/EV Battery Assembly circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code Popularity 320
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 22, 2024
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Code P0BC6 GMC Description

Hybrid/EV Battery Temperature Sensors are used to monitor the battery temperature. The non-serviceable battery temperature sensors are located within the battery sections. Two temperature sensors are located in each battery section. The temperature sensor is a variable resistor that measures the temperature of the battery cell group. The hybrid/EV interface control module supplies 5 V to the signal circuit and is a ground for the low reference circuit. The battery temperature sensor resistance changes with battery temperature. As the temperature decreases, the sensor resistance increases. As the temperature increases, the sensor resistance decreases.
Each Hybrid/EV Battery Interface Control Module communicates the temperature sensor values to the Hybrid/EV Powertrain Control Module via serial data.
The Hybrid/EV Powertrain Control Module uses the battery temperature sensors to determine the Hybrid/EV Battery Module temperature in order to control the battery cooling system operation.
The Diagnostic Trouble Code (DTC) will be set when the hybrid battery temperature sensor is intermittent or has changed by 10°C (18°F) or greater for 4 out of 5 seconds.
OBDII Code P0BC6 GMC - Hybrid/EV Battery Temperature Sensor 5 Circuit Erratic - AutoCodes.com
P0BC6 GMC Code - Hybrid/EV Battery Temperature Sensor 5 Circuit Erratic

What are the Possible Causes of the DTC P0BC6 GMC?

  • Faulty Hybrid/EV Battery Assembly
  • Hybrid/EV Battery Assembly harness is open or shorted
  • Hybrid/EV Battery Assembly circuit poor electrical connection
  • Faulty Hybrid/EV Battery Interface Control Module

How to Fix the DTC P0BC6 GMC?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0BC6 GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0BC6 GMC code?

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Information for Specific GMC Models

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0BC6 GMC Code

What does the OBDII code P0BC6 mean for a GMC vehicle?

The code P0BC6 indicates an issue with the Hybrid/EV Battery Temperature Sensor 5, where its circuit is behaving erratically.

What are common symptoms of the P0BC6 code in GMC vehicles?

Symptoms may include reduced fuel efficiency, limited hybrid or EV functionality, warning lights on the dashboard, and potential overheating of the battery pack.

What causes the P0BC6 code to appear in GMC vehicles?

The code can be triggered by a faulty temperature sensor, damaged wiring or connectors, corrosion, or issues within the battery management system.

How can I diagnose the P0BC6 code on a GMC vehicle?

Start by scanning the vehicle with an OBDII tool, inspecting the battery temperature sensor and its wiring for damage or corrosion, and testing the sensor's output with a multimeter.

Can the P0BC6 code affect the performance of the vehicle?

Yes, this code can lead to reduced hybrid or EV battery efficiency and potential safety risks due to improper temperature monitoring.

Is it safe to drive a GMC vehicle with the P0BC6 code?

It's not recommended to drive the vehicle for extended periods, as battery overheating or other complications could arise without proper temperature monitoring.

How do I fix the P0BC6 code on a GMC vehicle?

Repairs may include replacing the faulty battery temperature sensor, repairing damaged wiring or connectors, and clearing the code with an OBDII scanner.

How much does it typically cost to repair the P0BC6 code?

The repair cost can vary, but replacing a battery temperature sensor typically costs between $100 and $300, including labor.

Can a software issue cause the P0BC6 code?

Yes, sometimes the code can be triggered by a glitch in the vehicle's battery management system software, which may require an update or reprogramming.

Are there any preventative measures to avoid the P0BC6 code?

Regular maintenance, including inspecting the battery pack and its sensors for damage or corrosion, can help prevent this code from appearing.

Discuss the causes and fixes for P0BC6 GMC OBDII Code

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